The factors of 441 are: 1 3 7 9 21 49 63 147 441 The prime factors are: 3, 7
441 is a composite number because it has factors other than 1 and itself. It is not a prime number. The 9 factors of 441 are 1, 3, 7, 9, 21, 49, 63, 147, and 441. It is a square number (21 x 21), so...
28 = 7 x 2 x 2
12 = 2 x 2 x 3 Alternatively, using power notation: 12 = 22 x 3 2 x 2 x 3 = 12
The prime factors are: 2, 3. So, 2 x 3 = 6.